I wonder if jim @ JSrestorations.com would have it
I guess there must not be too many people installing road lamps on their Cuda's according to the replies I received ! But for those that will be I hope this info will help.
What I found was this inexpensive relay is the alternative to the high dollar NOS ($399) and reproduction ($199) relays on Ebay ! For under $5 you can use this relay with your road lamp harness. When I purchased the harness a few years ago, I didn't realize the relay was not included and I really don't want to spend $399 for an NOS relay ! A friend of mine that owns an electronic store sold this relay to me and provided the information below. Thanks Steve.
If this is already public knowledge, sorry for posting. Anyone wanting to purchase the relay send me a pm and I'll provide the contact info. Not sure if I'm allowed to post that here.